Wikipedia:Reference desk/Archives/Mathematics/2021 November 21

= November 21 =

Optimal curve for turning a railway track.
I know there is one. Did my honest best to try and search for it on wikipedia. -- Cimon Avaro&#59; on a pogostick. (talk) 17:29, 21 November 2021 (UTC)
 * I assume you're looking for track transition curve or Euler spiral? --Wrongfilter (talk) 19:21, 21 November 2021 (UTC)


 * The description in both matches my query, so yes that must be it. But I recall a load of history so where I originally got it from must have been on YouTube or something. -- Cimon Avaro&#59; on a pogostick. (talk) 20:43, 21 November 2021 (UTC)